Semarahua is a village in Shohratgarh tehsil in district of Siddharthnagar, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Semarahua was 1,018 which includes 540 males and 478 females. Semarahua covers 154.38 ha area. Pincode of Semarahua is N/A.